Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Aguirre, PR

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
787-853 A AGURPRRRRS1  3201 PUERTO RICO TEL. CO. 820      
787-853 0   3201 PUERTO RICO TEL. CO. 820      
787-853 1   3201 PUERTO RICO TEL. CO. 820      
787-853 2   3201 PUERTO RICO TEL. CO. 820      
787-853 3   3201 PUERTO RICO TEL. CO. 820      
787-853 4   3201 PUERTO RICO TEL. CO. 820      
787-853 5   3201 PUERTO RICO TEL. CO. 820      
787-853 6   624H ONVOY SPECTRUM, LLC 820   2023-12-05   
787-853 7   559F NEUTRAL TANDEM - PR 820   2021-01-25   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.